C#: Accept irrelevant changes.

The additions are unintentional, but the fault lies with the shared
SignAnalysis code. The removals are due to compile-time constant
initializers no longer having CFG nodes.

Author: aschackmull

csharp/ql/test/library-tests/dataflow/signanalysis/SignAnalysis.expected

@@ -88,6 +88,7 @@
 | SignAnalysis.cs:108:13:108:21 | Decimal de = ... | strictlyPositive |
 | SignAnalysis.cs:108:18:108:21 | 4.2 | strictlyPositive |
 | SignAnalysis.cs:109:34:109:35 | access to local variable de | strictlyPositive |
+| SignAnalysis.cs:110:13:110:13 | access to local variable c | positive |
 | SignAnalysis.cs:110:13:110:19 | Char c = ... | strictlyPositive |
 | SignAnalysis.cs:110:17:110:19 | a | strictlyPositive |
 | SignAnalysis.cs:111:34:111:34 | access to local variable c | strictlyPositive |
@@ -161,6 +162,8 @@
 | SignAnalysis.cs:306:21:306:22 | -... | strictlyNegative |
 | SignAnalysis.cs:306:22:306:22 | 1 | strictlyPositive |
 | SignAnalysis.cs:309:38:309:38 | access to local variable x | strictlyNegative |
+| SignAnalysis.cs:315:13:315:15 | access to local variable min | positive |
+| SignAnalysis.cs:316:13:316:15 | access to local variable max | positive |
 | SignAnalysis.cs:316:13:316:31 | Char max = ... | strictlyPositive |
 | SignAnalysis.cs:316:19:316:31 | access to constant MaxValue | strictlyPositive |
 | SignAnalysis.cs:317:13:317:23 | Int32 c = ... | strictlyPositive |
@@ -195,6 +198,7 @@
 | SignAnalysis.cs:357:13:357:13 | access to parameter i | positive |
 | SignAnalysis.cs:359:38:359:38 | access to parameter i | strictlyPositive |
 | SignAnalysis.cs:371:38:371:38 | access to local variable y | strictlyNegative |
+| SignAnalysis.cs:377:16:377:17 | access to local variable dp | positive |
 | SignAnalysis.cs:377:16:377:22 | Single* dp = ... | positive |
 | SignAnalysis.cs:377:21:377:22 | &... | positive |
 | SignAnalysis.cs:378:18:378:19 | access to local variable dp | positive |
@@ -213,14 +217,12 @@
 | SignAnalysis.cs:414:13:414:13 | access to local variable i | strictlyPositive |
 | SignAnalysis.cs:415:31:415:31 | access to local variable i | strictlyPositive |
 | SignAnalysis.cs:424:31:424:31 | access to local variable x | strictlyNegative |
-| SignAnalysis.cs:428:19:428:19 | access to constant A | strictlyPositive |
-| SignAnalysis.cs:428:19:428:24 | ... = ... | strictlyPositive |
-| SignAnalysis.cs:428:23:428:24 | 12 | strictlyPositive |
 | SignAnalysis.cs:434:38:434:38 | access to local variable i | strictlyNegative |
 | SignAnalysis.cs:440:23:440:25 | access to parameter src | positive |
 | SignAnalysis.cs:440:29:440:31 | access to parameter dst | positive |
 | SignAnalysis.cs:443:38:443:38 | access to local variable x | strictlyNegative |
 | SignAnalysis.cs:446:31:446:32 | 10 | strictlyPositive |
+| SignAnalysis.cs:448:22:448:23 | access to local variable to | positive |
 | SignAnalysis.cs:448:22:448:29 | Byte* to = ... | positive |
 | SignAnalysis.cs:448:27:448:29 | (...) ... | positive |
 | SignAnalysis.cs:450:38:450:44 | (...) ... | positive |
@@ -232,6 +234,7 @@
 | SignAnalysis.cs:457:18:457:27 | call to method Unsigned | positive |
 | SignAnalysis.cs:458:13:458:13 | access to local variable l | positive |
 | SignAnalysis.cs:460:38:460:38 | access to local variable l | strictlyPositive |
+| SignAnalysis.cs:463:14:463:14 | access to local variable x | positive |
 | SignAnalysis.cs:463:14:463:24 | UInt32 x = ... | positive |
 | SignAnalysis.cs:463:18:463:24 | (...) ... | positive |
 | SignAnalysis.cs:464:9:464:9 | access to local variable x | positive |